Home / 157,856.18-217,849.30-89,874.50

Finding the Fourth Proportional to 157,856.18, 217,849.30 and 89,874.50

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Solution

The fourth proportional to 157,856.18, 217,849.30 and 89,874.50 is: 124,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,856.18 : 217,849.30 = 89,874.50 : x
  2. Step 2: Convert to fraction form
    157,856.18/217,849.30 = 89,874.50/x
  3. Step 3: Cross multiply
    157,856.18x = 217,849.30 × 89,874.50
  4. Step 4: Simplify right side
    157,856.18x = 19,579,095,598.92
  5. Step 5: Solve for x
    x = 19,579,095,598.92/157,856.18
  6. Step 6: Final answer
    x = 124,031.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.